<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter='40'>
        <el-col :span='9'>
          <el-input @clear='getUserList' clearable placeholder="请输入内容" v-model="queryInfo.query">
            <el-button slot="append" icon="el-icon-search" @click='getUserList'></el-button>
          </el-input>
        </el-col>
        <el-col :span='4'>
          <el-button type='primary' @click='addDialogVisible=true'>添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userlist" stripe border style="width: 100%">
        <el-table-column type='index'>
        </el-table-column>
        <el-table-column prop="username" label="姓名">
        </el-table-column>
        <el-table-column prop="email" label="邮箱">
        </el-table-column>
        <el-table-column prop="mobile" label="电话">
        </el-table-column>
        <el-table-column prop="role_name" label="角色">
        </el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <template slot-scope="scope">
            <el-switch @change='userStateChanged(scope.row)' v-model="scope.row.mg_state">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width='180px'>
          <template slot-scope='scope'>
            <!-- 修改 -->
            <el-button type="primary" icon="el-icon-edit" size='mini' @click='showEditDialog(scope.row.id)'></el-button>
            <!-- 删除 -->
            <el-button type="danger" icon="el-icon-delete" size='mini' @click='removeUserByid(scope.row.id)'>
            </el-button>
            <!-- 分配角色 -->
            <el-tooltip effect="dark" content="分配角色" placement="top-start" :enterable='false'>
              <el-button type="warning" icon="el-icon-setting" size='mini' @click='setRole(scope.row)'></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>

    <!--添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close='addDialogClosed'>
      <!-- 对话框主体 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 对话框底部 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 编辑用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDailogVisible" width="50%">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop='email'>
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop='mobile'>
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click='editDialogClosed'>取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close='setRoleDialogClosed'>
      <div>
        <p>当前的用户:{{userInfo.username}}</p>
        <p>当前的角色:{{userInfo.role_name}}</p>
        <p>分配新角色:
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    name: '',
    data() {
      // 自定义校验规则
      var checkEmail = (rule, value, cb) => {
        const regEmail = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
        if (regEmail.test(value)) { return cb() }
        cb(new Error('请输入合法的邮箱!'))
      }
      var checkMobile = (rule, value, cb) => {
        const regMobile = /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
        if (regMobile.test(value)) { return cb() }
        cb(new Error('请输入合法的手机号!'))
      }

      return {
        // 下拉框选中的角色ID
        selectRoleId: '',
        // 所有角色列表数据
        rolesList: [],
        // 控制分配角色对话框的显示和隐藏
        setRoleDialogVisible: false,
        // 需要被分配角色的用户信息
        userInfo: {},
        // 查询对话框校验规则
        editFormRules: {
          email: [
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator: checkEmail, trigger: 'blur' }
          ],
          mobile: [
            { required: true, message: '请输入手机号', trigger: 'blur' },
            { validator: checkMobile, trigger: 'blur' }
          ],
        },
        // 查询到的用户信息对象
        editForm: {

        },
        // 控制修改用户对话框的显示和隐藏
        editDailogVisible: false,
        // 验证规则
        addFormRules: {
          username: [
            { required: true, message: '请输入用户名', trigger: 'blur' },
            { min: 3, max: 10, message: '用户名在3到10个字符之间', trigger: 'blur' },
          ],
          password: [
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 15, message: '密码在6到15个字符之间', trigger: 'blur' },
          ],
          email: [
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator: checkEmail, trigger: 'blur' }
          ],
          mobile: [
            { required: true, message: '请输入手机号', trigger: 'blur' },
            { validator: checkMobile, trigger: 'blur' }
          ],
        },
        // 添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: ''
        },
        // 控制添加用户对话框的显示隐藏
        addDialogVisible: false,
        // 获取用户列表的参数对象
        queryInfo: {
          query: '',
          // 当前页码
          pagenum: 1,
          // 每页显示数目
          pagesize: 2
        },
        // user
        userlist: [],
        total: 0
      }
    },
    created() {
      this.getUserList()
    },
    methods: {
      async getUserList() {
        const { data: res } = await this.$http.get('/users', {
          params: this.queryInfo
        })
        if (res.meta.status !== 200) return this.$message({ type: 'error', message: '获取用户列表失败' })
        this.userlist = res.data.users
        this.total = res.data.total
      },
      // 监听pagesize改变的事件
      handleSizeChange(newSize) {
        this.queryInfo.pagesize = newSize
        // 每页显示数据数目变化 重新发起请求
        this.getUserList()
      },
      // 监听页码值改变
      handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage
        // 当前页码值改变 更新数据
        this.getUserList()
      },
      // 监听switch开关状态的改变
      async userStateChanged(userinfo) {
        // 调用接口保存用户修改的状态
        const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if (res.meta.status !== 200) {
          // 修改失败 恢复本地状态
          userinfo.mg_state = !userinfo.mg_state
          return this.$message({ type: 'error', message: '更新用户状态失败' })
        }
        this.$message({ type: 'success', message: '更新状态成功' })
      },
      // 监听对话框关闭时
      addDialogClosed() {
        // 清空表单项
        this.$refs.addFormRef.resetFields()
      },
      // 点击按钮添加新用户
      addUser() {
        this.$refs.addFormRef.validate(async valid => {
          if (!valid) return
          // 添加用户表单校验通过 发起添加用户的网络请求
          const { data: res } = await this.$http.post('/users', this.addForm)
          console.log(res);
          if (res.meta.status !== 201) { return this.$message({ type: 'error', message: '添加用户失败' }) }
          this.$message({ type: 'success', message: '添加用户成功' })
          // 隐藏对话框
          this.addDialogVisible = false
          // 刷新列表
          this.getUserList()
        })
      },
      //  展示编辑用户的对话框
      async showEditDialog(id) {
        this.editDailogVisible = true
        // 根据id查询用户信息
        const { data: res } = await this.$http.get(`/users/${id}`)
        if (res.meta.status !== 200) { return this.$message({ type: 'error', message: '查询失败' }) }
        this.editForm = res.data
      },
      // 监听修改用户对话框的关闭事件
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
        this.editDailogVisible = false
      },
      // 修改用户信息
      editUserInfo() {
        this.$refs.editFormRef.validate(async valid => {
          if (!valid) return
          // 发起修改信息请求
          const { data: res } = await this.$http.put(`/users/${this.editForm.id}`, {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })
          if (res.meta.status !== 200) { return this.$message({ type: 'error', message: '更新失败' }) }
          this.editDailogVisible = false
          this.getUserList()
          this.$message({ type: 'success', message: '修改成功' })
        })
      },
      // 根据id删除对应的用户
      async removeUserByid(id) {
        // 弹框询问用户是否删除数据
        // 用户确定  返回confirm  用户取消 catch捕获异常   返回 cancle
        const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(error => error)
        if (confirmResult !== 'confirm') {
          return this.$message({
            type: 'info',
            message: '已取消删除'
          });
        }
        // 如果没有取消删除  也就是确认删除
        // 发送ajax请求 删除数据 更新列表
        const { data: res } = await this.$http.delete('/users/' + id)
        if (res.meta.status !== 200) { return this.$message({ type: 'error', message: '删除失败' }) }
        this.$message({
          type: 'success',
          message: '删除成功!'
        });
        // 刷新列表
        this.getUserList()
      }
      ,
      // 展示分配角色的对话框
      async setRole(userInfo) {
        // 获取所有的角色列表
        const { data: res } = await this.$http.get('roles')
        if (res.meta.status !== 200) { return this.$message({ type: 'error', message: '获取角色列表失败' }) }
        this.rolesList = res.data
        console.log(userInfo);
        this.userInfo = userInfo
        this.setRoleDialogVisible = true
      },
      //点击确定 修改用户的角色
      async saveRoleInfo() {
        if (!this.selectRoleId) { return this.$message({ type: 'error', message: '请选择要分配的角色' }) }
        const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, {
          rid: this.selectRoleId
        })
        if (res.meta.status !== 200) { return this.$message({ type: 'error', message: '更新用户失败' }) }
        this.$message({ type: 'success', message: '更新用户成功' })
        // 刷新列表
        this.getUserList()
        this.setRoleDialogVisible = false
      },
      // 修改角色对话框的关闭事件
      setRoleDialogClosed() {
        this.selectRoleId = ''
        this.userInfo = ''
      }
    },
    components: {

    }
  }
</script>

<style scoped>
  .el-table {
    margin-top: 15px;
    font-size: 12px;
  }
</style>